Replaced owner_id with app.owner

modules/bwt.py

@@ -84,7 +84,7 @@ async def getWaterLeft(cardid, filename, app=None):
 
         if app != None:
             await app.send_message(
-                await config_get("owner_id"),
+                app.owner,
                 f"**Exception occured:**\n • User: `{str(filename)}`\n • Card: [{cardid}]({url})\n • Exception: `{exp}`\n • TMP UUID: `{tmp_name}`\n • Traceback: `{format_exc()}`",
                 disable_web_page_preview=True,
             )